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Home >> Toyota >> 2009 >> Highlander Base, 2.7 A >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (1AR-FE) - Circuit Testing, Component Inspection, Removal & Installation >> ACIS Control Circuit >> Description
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ACIS Control Circuit: Description

This circuit opens and closes the Intake Air Control Valve (IACV) in response to the engine load in order to increase the intake efficiency (ACIS: Acoustic Control Induction System).

Fig 1: Identifying Intake Manifold And Intake Air Control Valve (IACV)
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